Industry-Verified Manufacturing Data (2026)

Lead Screw / Ball Screw

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Lead Screw / Ball Screw used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Lead Screw / Ball Screw is characterized by the integration of Screw shaft and Nut. In industrial production environments, manufacturers listed on CNFX commonly emphasize Carbon steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A mechanical linear actuator that converts rotational motion into precise linear motion.

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Product Specifications

Technical details and manufacturing context for Lead Screw / Ball Screw

Definition
A critical component within drive mechanisms that provides controlled linear movement through screw threads. Lead screws use sliding contact between screw and nut, while ball screws use recirculating ball bearings for reduced friction and higher efficiency.
Working Principle
Rotational force applied to the screw shaft causes the nut to travel along the screw's axis. In lead screws, friction between threads drives movement. In ball screws, ball bearings roll between screw and nut grooves, minimizing friction and enabling precise positioning.
Common Materials
Carbon steel, Alloy steel, Stainless steel
Technical Parameters
  • Lead (linear travel per revolution) and diameter are primary specifications (mm) Per Request
Components / BOM
  • Screw shaft
    Primary rotating element with helical grooves
    Material: steel
  • Nut
    Traveling component that moves along screw axis
    Material: steel or bronze
  • Ball bearings
    Recirculating elements that reduce friction (ball screws only)
    Material: chrome steel
Engineering Reasoning
0.1-100 kN axial load, 0-3000 rpm rotational speed, -40°C to 120°C temperature
Ball screw: 1.5×10⁶ cycles at 90% dynamic load rating; Lead screw: 0.5×10⁶ cycles at 70% static load rating
Design Rationale: Ball screw: Hertzian contact fatigue at ball-raceway interface exceeding material endurance limit (σ_e ≈ 0.5×UTS); Lead screw: Adhesive wear at thread interface exceeding Archard wear coefficient (K ≈ 10⁻⁷ mm³/N·m)
Risk Mitigation (FMEA)
Trigger Axial preload loss below 2% of dynamic load rating
Mode: Backlash exceeding 50 μm causing positioning error >0.01 mm
Strategy: Double-nut preload system with Belleville washers maintaining 5-8% preload
Trigger Contamination ingress >ISO 4406 18/16/13 particle count
Mode: Abrasive wear increasing torque >150% of nominal value
Strategy: IP65-rated wiper seals with 0.5 μm filtration and positive-pressure purge system

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Lead Screw / Ball Screw.

precision ball screw linear actuator industrial lead screw for machinery stainless steel ball screw assembly carbon steel lead screw components ball screw nut with bearings

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Drive Mechanism
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Vertical Actuator
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Drive Mechanism (e.g., Ball Screw, Hydraulic Cylinder)
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Leaf Drive Mechanism
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Height Adjustment Mechanism
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Linear Actuator Module
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Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Not applicable (mechanical component, not fluid pressure)
other spec: Max axial load: 5-500 kN depending on diameter and nut type, Max speed: 0.5-3 m/s depending on lead and lubrication
temperature: -20°C to 120°C (standard), up to 200°C with special materials/lubrication
Media Compatibility
✓ Machine tool applications (cutting fluids) ✓ Packaging machinery (dry environments) ✓ Medical equipment (cleanroom conditions)
Unsuitable: High particulate environments without proper sealing (e.g., abrasive dust, sand blasting operations)
Sizing Data Required
  • Required axial load capacity (kN)
  • Required travel speed (mm/s or m/s)
  • Required positioning accuracy/repeatability (mm or μm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Backlash and Positioning Error
Cause: Wear of ball or lead screw threads, nut wear, or loss of preload due to improper lubrication, contamination, or overloading.
Thread or Ball Track Damage
Cause: Abrasive wear from particulate contamination, corrosion from moisture or chemicals, or brinelling from shock loads or improper handling.
Maintenance Indicators
  • Audible grinding, clicking, or excessive noise during operation
  • Visible metal shavings or discoloration around the screw or nut, or increased vibration
Engineering Tips
  • Implement strict contamination control: use proper seals, wipers, and bellows, and maintain clean lubrication with appropriate grease or oil.
  • Ensure correct alignment during installation, avoid shock loads, and regularly check and adjust preload to specified tolerances.

Compliance & Manufacturing Standards

Reference Standards
ISO 3408: Ball screws - Vocabulary and designation ANSI/ASME B5.48: Ball Screws DIN 69051: Ball screws; concepts, parameters
Manufacturing Precision
  • Lead accuracy: ±0.005 mm/300 mm
  • Runout tolerance: 0.02 mm maximum
Quality Inspection
  • Hardness testing (Rockwell C scale)
  • Dimensional verification with CMM (Coordinate Measuring Machine)

Factories Producing Lead Screw / Ball Screw

Verified manufacturers with capability to produce this product in China

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✓ 93% Supplier Capability Match Found

P Project Engineer from Germany Feb 06, 2026
★★★★★
"Found 53+ suppliers for Lead Screw / Ball Screw on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
S Sourcing Manager from Brazil Feb 03, 2026
★★★★★
"The technical documentation for this Lead Screw / Ball Screw is very thorough, especially regarding technical reliability."
Technical Specifications Verified
P Procurement Specialist from Canada Jan 31, 2026
★★★★★
"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Lead Screw / Ball Screw so far."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

19 sourcing managers are analyzing this specification now. Last inquiry for Lead Screw / Ball Screw from UAE (56m ago).

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Frequently Asked Questions

What is the difference between lead screws and ball screws?

Lead screws use sliding contact between screw and nut threads, offering simplicity and self-locking. Ball screws use recirculating ball bearings for higher efficiency, precision, and speed, but at higher cost.

Which material is best for corrosive environments?

Stainless steel provides excellent corrosion resistance for harsh environments. Carbon and alloy steels require protective coatings but offer higher strength for heavy-duty applications.

How do I maintain ball screw assemblies?

Regular lubrication of ball bearings and screw shaft is essential. Inspect for wear on nut threads and ball recirculation paths. Ensure proper alignment to prevent premature failure.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Machinery and Equipment Manufacturing sector.

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